"It's been five years since Charlotte Donovan was ditched at the altar by her ex-fiancée, and she's doing more than okay. Sure, her single mother never checks in, but she has her strings ensemble, the Rosalind Quartet, and her life in New York is a dream come true. As the holidays draw near, her ensemble mate Sloane persuades Charlotte and the rest of the quartet to spend Christmas with her family in Colorado-it is much cozier and quieter than Manhattan,...